using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Microsoft.OpenApi.Models;
using Shop.Backend.Api.Database;
using Shop.Backend.Api.Repository;

namespace Shop.Backend.Api
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        private readonly string _allowCors = "AllowAllCores";

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {

            //注入跨域
            services.AddCors(option =>
            {
                option.AddPolicy(_allowCors,
                    builder => builder
                    .AllowAnyHeader()
                    .AllowAnyMethod()
                    .AllowAnyOrigin());
            });

            // 注入数据库上下文
            services.AddDbContext<ShopDb>(o => o.UseSqlServer());

            // 注入 IRepository接口及其实现类
            services.AddScoped(typeof(IRepository<>), typeof(EfRepository<>));


            services.AddControllers();
            services.AddSwaggerGen(c =>
            {
                c.SwaggerDoc("v1", new OpenApiInfo { Title = "Shop.Backend.Api", Version = "v1" });
            });
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseSwagger();
                app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "Shop.Backend.Api v1"));
            }
            //加载静态资源中间件
            app.UseStaticFiles();

            app.UseRouting();

            //注册跨域中间件
            app.UseCors(_allowCors);

            //验证token的中间件
            app.UseAuthentication();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
        }
    }
}
